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在利比里亚北部草原区和中部雨林区各选2个村庄进行调查。草原区每平方公里的人口密度为10～40人,该区 B 村和 Gb 村居民的微丝蚴带虫率分别为18. 3%和20. 0%。雨林区每平方公里内的居民人口密度很低,为2人。该区 Gr 村和 K 村居民的微丝蚴阳性率分别为12. 5%和10. 3%。在上述4村,共捕获蚊虫4属9种共10,561只,证明是班氏丝虫的媒介蚊种有冈比亚按蚊、致死按蚊和 A.nili。草原区3种按蚊的幼丝虫感染
Surveys were conducted in two selected villages in the northern Prairie and Central Rainforest regions of Liberia. The population density per square kilometer in grassland area was 10-40, and the population of microfilariae with microfilariae in residents of village B and village Gb were 18.3% and 20.0% respectively. The population density per square kilometer in the rain forest area is very low, at 2 people. 5% 和 10.3%. The positive rates of microfilariae of residents of Gr village and K village in this area were 12.5% and 10.3% respectively. A total of 10,561 mosquitoes, 9 genera, 4 genera and 4 mosquitoes were captured in the 4 villages above. Anopheles gambiae, An. Three Anopheles sinensis larvae infection in grassland area